It has shown great effectiveness against stinging, sucking and chewing insects as a foliar or soil treatment. According to Regulation (EU) 2016/156 of 18 January 2016, the new maximum residue levels for thiamethoxam permitted on rocket have been reduced from 5 ppm to 0.01 ppm. This means that thiamethoxam is no longer permitted for rocket, given that the new label issued on 15 September 2016 no longer provides for its use. Unfortunately, the thiamethoxam residue is not restricted to its use. EU farmers have in fact pointed out that the product remains in the ground following previous cultivation, even in cases where the last treatment took place 15 months earlier. Does the Commission not think it should raise the maximum limits of thiamethoxam residues on rocket from 0.01 ppm to 0.05 ppm, in order to avoid causing economic damage to European farmers, who are already going through a period of crisis?
INTECH - 2012 - Insecticides - Basic and Other Applications. Au sommaire: Insecticide Thiamethoxam: A Bioactive Action on Carrot Seeds (Daucus carota L.)

SPRINGER 25/04/16 Changes in light quality alter physiological responses of soybean to thiamethoxam. PEST MANAGEMENT SCIENCE 19/05/15 The degradation rate of thiamethoxam in European field studies. Thiamethoxam is a pesticidal active substance in the neonicotinoid class of insecticides used for the control of a wide range of insects, including aphids, whitefly, thrips, grubs, beetles and some lepidopteran species.[1] The structure of thiamethoxam is presented in Fig. 1.

Thiamethoxam exhibits low volatility, with a reported vapour pressure of 6.6 × 10−9 Pa and a Henry's law constant of 4.7 × 10−10 Pa m3 mol−1. In common with its high water solubility (4.1 g L−1 at 25 °C), thiamethoxam exhibits a log Kow of −0.13 at 25 °C.[1] Kurwadkar et al.[2] reported a mean adsorption of thiamethoxam of 14.25% after 96 h in a soil with an organic carbon content of 1.0% and a soil:solution ratio of 1:5. Kurwadkar et al.[3] demonstrated that, for soils with organic carbon contents of <1.2%, leaching of thiamethoxam through the soil profile in theory could occur to a depth of 20 cm where precipitation is significant (equivalent to 6.4 mm min−1).

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PLOS 04/05/15 Thiamethoxam Resistance in the House Fly, Musca domestica L.: Current Status, Resistance Selection, Cross-Resistance Potential and Possible Biochemical Mechanisms. Abstract The house fly, Musca domestica L., is an important ectoparasite with the ability to develop resistance to insecticides used for their control.

Thiamethoxam, a neonicotinoid, is a relatively new insecticide and effectively used against house flies with a few reports of resistance around the globe. To understand the status of resistance to thiamethoxam, eight adult house fly strains were evaluated under laboratory conditions. In addition, to assess the risks of resistance development, cross-resistance potential and possible biochemical mechanisms, a field strain of house flies was selected with thiamethoxam in the laboratory.
J. Agric. Food Chem. 2015, 63, 2119−2126 Residues of Thiamethoxam and Chlorantraniliprole in Rice Grain.

Pour lui, cette manière de procéder est « contraire au régime d'autorisation des produits phytopharmaceutiques ». Lire également :
BUSINESS WEEK 29/01/13 Syngenta Dismisses EU Call for Cruiser Insecticide Precautions. Syngenta AG (SYNN) said there aren’t grounds for restricting the use of its Cruiser insecticide after European Commissioner for Health Tonio Borg called for laws which may control the product and sprays from Bayer AG. (BAYN) The Swiss maker of crop chemicals said any constraint on Cruiser, a neonicotinoid pesticide which protects crops from corn to cotton against insects such as beetles and centipedes, would cause significant loss to farmers and the economy, without helping bees.

“We believe that a large number of European Member States agree and will make clear their positions in the coming weeks,” Syngenta spokesman Paul Barrett said in an e-mailed statement. Bee populations “are primarily under threat from disease and poor nutrition,” he said, challenging the findings of a European Food Safety Authority report, which said Cruiser threatens bee health. Borg’s comments are a blow to Basel-based Syngenta which won sales exceeding $1 billion for Cruiser in 2011, or 7.5 percent of revenue.
JO SENAT 08/08/12 Réponse à Question écrite n° 23783 Interdiction du pesticide Cruiser OSR.